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FreeBSD sys_dev_random Random Data Replay Vulnerability
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Secunia Advisory:
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SA27879
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Release Date:
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2007-11-30
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Critical:
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Less critical
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Impact:
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Exposure of sensitive information
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Where:
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From local network
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Solution Status:
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Vendor Patch
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| OS: | FreeBSD 4.x
FreeBSD 5.x
FreeBSD 6.x
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| | CVE reference: | CVE-2007-6150 (Secunia mirror)
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Description:
A vulnerability has been reported in FreeBSD, which can be exploited by malicious people to disclose potentially sensitive information.
The vulnerability is caused due to an error within the sys_dev_random module when supplying random data. This can be exploited to determine fragments of random data previously generated and e.g. break a cryptographic algorithm that uses the random or urandom device.
The vulnerability affects all supported versions of FreeBSD.
Solution:
Update FreeBSD or apply patch.
Fixed versions:
2007-11-29 16:05:38 UTC (RELENG_7, 7.0-BETA4)
2007-11-29 16:06:12 UTC (RELENG_6, 6.3-PRERELEASE)
2007-11-29 16:06:54 UTC (RELENG_6_3, 6.3-RC2)
2007-11-29 16:07:30 UTC (RELENG_6_2, 6.2-RELEASE-p9)
2007-11-29 16:07:54 UTC (RELENG_6_1, 6.1-RELEASE-p21)
2007-11-29 16:08:54 UTC (RELENG_5, 5.5-STABLE)
2007-11-29 16:09:26 UTC (RELENG_5_5, 5.5-RELEASE-p17)
Patch for FreeBSD 5.5, 6.1, and 6.2:
http://security.FreeBSD.org/patches/SA-07:09/random.patch
http://security.FreeBSD.org/patches/SA-07:09/random.patch.asc
Provided and/or discovered by:
The vendor credits Robert Woolley.
Original Advisory:
http://security.FreeBSD.org/advisories/FreeBSD-SA-07:09.random.asc
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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